可以自动完成EditTextPreference吗？

public class AutoCompleteEditTextPreference extends EditTextPreference {
    private AutoCompleteTextView mAutoCompleteTextView;
    private String[] mSuggestions;

    public AutoCompleteEditTextPreference(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
        super(context, attrs, defStyleAttr, defStyleRes);
        init();
    }

    public AutoCompleteEditTextPreference(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        init();
    }

    public AutoCompleteEditTextPreference(Context context, AttributeSet attrs) {
        super(context, attrs);
        init();
    }

    public AutoCompleteEditTextPreference(Context context) {
        super(context);
        init();
    }

    private void init() {
        setDialogLayoutResource(R.layout.autocomplete_edittext_preference_dialog);
    }

    @Override
    protected void onBindDialogView(View view) {
        super.onBindDialogView(view);
        mAutoCompleteTextView = view.findViewById(android.R.id.edit);
        mAutoCompleteTextView.setAdapter(new ArrayAdapter<>(getContext(), android.R.layout.simple_dropdown_item_1line, mSuggestions));
    }

    public void setSuggestions(String[] suggestions) {
        mSuggestions = suggestions;
    }

    public String[] getSuggestions() {
        return mSuggestions;
    }
}

<com.example.myapp.AutoCompleteEditTextPreference
    android:key="my_autocomplete_preference"
    android:title="My AutoComplete Preference"
    android:summary="Select a suggestion"
    android:defaultValue="Default suggestion" />

AutoCompleteEditTextPreference autoCompleteEditTextPreference = (AutoCompleteEditTextPreference) findPreference("my_autocomplete_preference");
autoCompleteEditTextPreference.setSuggestions(new String[]{"Suggestion 1", "Suggestion 2", "Suggestion 3"});